Why didn't the permanent offline code of Tianfu health scan respond?

No network or no traffic. Tianfu Health Link is a two-dimensional code electronic certificate of personal health status, and it is also the inspection basis for epidemic prevention and control. One person has one yard and the code is clear. Considering the elderly, children and other people who have difficulty applying online, "Sichuan Tianfu Health Link" has set up a family health code, which can be applied by their relatives. At the same time, the health code also provides offline code function. After the offline health code is generated, it can be downloaded and printed on paper, which can be carried by the elderly and children.